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Visar resultat 1 - 5 av 91 avhandlingar som matchar ovanstående sökkriterier.

1. 1. Attrition in Studies of Cognitive Aging

   Författare :Maria Josefsson; Xavier de Luna; Lars Nyberg; Anders Lundquist; Mattias Villani; Umeå universitet; []
   Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Attrition; missing data; age-related cognitive change; non- ignorable dropout; monotone missing pattern; mixture models; pattern- mixture models; imputation; Statistics; statistik;

   Sammanfattning : Longitudinal studies of cognition are preferred to cross-sectional stud- ies, since they offer a direct assessment of age-related cognitive change (within-person change). Statistical methods for analyzing age-related change are widely available. LÄS MER

3. 2. Förstaspråksattrition hos vuxna : Exemplet polsktalande i Sverige

   Författare :Dorota Lubińska; Kenneth Hyltenstam; Michael Sharwood Smith; Stockholms universitet; []
   Nyckelord :HUMANIORA; HUMANITIES; first language attrition; Polish language; Polish immigrants; verbal government; hesitation phenomena; pro-drop parameter; genitive; genitive of negation; reflexive verbs; masculine declension; language attitudes; language use; jezyk polski w Szwecji; atrycja; dwujezycznosc; gramatyka polska; emigracja polska w Szwecji; Bilingualism; Tvåspråkighet; tvåspråkighetsforskning; Bilingualism;

   Sammanfattning : This thesis is concerned with adult L1 attrition in the case of highly-educated long-term Polish immigrants in Sweden. The study sheds light on two classical issues pertaining to L1 attrition, namely what happens to a fully developed mature language system in an immigrant context, and why it happens. LÄS MER

4. 3. Unemployment duration and attrition

   Författare :Kenneth Carling; Uppsala universitet; []
   Nyckelord :SOCIAL SCIENCES; SAMHÄLLSVETENSKAP;

   Sammanfattning : .... LÄS MER

5. 4. Attrition in University Physics : a narrative study of individuals reacting to a collectivist environment

   Författare :Bjørn Friis Johannsen; Cedric Linder; Camilla Rump; Uppsala universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Other physics; Övrig fysik; Physics with specialization in Physics Education; Fysik med inriktning mot fysikens didaktik;

   Sammanfattning : .... LÄS MER

7. 5. Age differences in first language attrition : A maturational constraints perspective

   Författare :Emanuel Bylund Spångberg; Kenneth Hyltenstam; Niclas Abrahamsson; Silvina Montrul; Stockholms universitet; []
   Nyckelord :HUMANIORA; HUMANITIES; first language attrition; age differences; maturational constraints; critical period; language acquisition; bilingualism; international adoptees; conceptual proficiency; language aptitude; Bilingualism; Tvåspråkighet; tvåspråkighetsforskning; Bilingualism;

   Sammanfattning : This thesis investigates age-related differences in first language (L1) attrition in a second language (L2) setting. The thesis is based on four individual studies. LÄS MER